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#include "mainwindow.h"
#include "iconwidget.h"
#include "mycanvas.h"

#include <QtWidgets>
#include <stdlib.h>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    setupWidgets();

    setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
    setWindowTitle(tr("拼图"));
    loadImage(QStringLiteral(":/images/example.jpg"));
    setupPuzzle();
}

void MainWindow::setupWidgets()
{
    QFrame *frame = new QFrame;
    QHBoxLayout *frameLayout = new QHBoxLayout(frame);

    showWidget = new MyCanvas(this);
    iconWidget = new IconWidget(this);

    frameLayout->addWidget(iconWidget);
    frameLayout->addWidget(showWidget);
    setCentralWidget(frame);
}

void MainWindow::setupPuzzle()
{
    QPixmap image = puzzleImage.scaled(100,100,
                       Qt::IgnoreAspectRatio,
                       Qt::SmoothTransformation);
//    int size = qMin(puzzleImage.width(), puzzleImage.height());
//    puzzleImage = puzzleImage.copy(
//                        (puzzleImage.width() - size) / 2,
//                        (puzzleImage.height() - size) / 2,
//                        size, size).scaled(
//                            showWidget->width(),
//                            showWidget->height(),
//                            Qt::IgnoreAspectRatio,
//                            Qt::SmoothTransformation);

    iconWidget->clear();
    iconWidget->addPiece(image, QPoint(0, 0));

//    for (int i = 0; i < iconWidget->count(); ++i) {
//        if (QRandomGenerator::global()->bounded(2) == 1) {
//            QListWidgetItem *item = iconWidget->takeItem(i);
//            iconWidget->insertItem(0, item);
//        }
//    }

    showWidget->clear();
}

void MainWindow::loadImage(const QString &fileName)
{
    QPixmap newImage;
    if (!newImage.load(fileName)) {
        QMessageBox::warning(this, tr("Open Image"),
                             tr("The image file could not be loaded."),
                             QMessageBox::Close);
        return;
    }
    puzzleImage = newImage;
}

